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Urticaria, also known as hives, is a skin rash with red, raised itchy bumps. They may also burn or sting. The whelts often last only hours or days and move around, and don't leave any lasting skin changes. Viral, bacterial or fungal infections may trigger hives, and hives frequently recur.

Image Source: Reproduced with permission from ©DermNet NZ www.dermnetnz.org 2022
Text Source: American College of Allergy, Asthma & Immunology
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Cleveland Clinic